the amount of work done in pumping water out of a cubical vessel of height 1 m is nearly___________
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Because the height of center of mass of thewater in vessel is (1/2)m above ground. Hence the energy of the mass ofwater=1000×9.8×(1/2)=4900J.So 4900J of work is to be done in taking the water out of the vessel.
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Answer. => 5000 Joule nearly.
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